Pioneer-VSX522K-avr-sm维修电路原理图.pdf

ORDER NO. 2012 Printed in Japan VSX-522-K RRV4296 AV Receiver VSX-522-K THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-522-KCUXESMAC 120 V K-MZV FEB. RadioFans.CN 收音机爱 好者资料库 2VSX-522-K 1234 A B C D E F 1234 SAFETY INFORMATION WARNING This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm. Health it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. 1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120 V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. Leakage current tester Reading should not be above 0.5 mA Device under test Test all exposed metal surfaces Also test with plug reversed (Using AC adapter plug as required) Earth ground AC Leakage Test (FOR USA MODEL ONLY) RadioFans.CN 收音机爱 好者资料库 3VSX-522-K 5678 5678 A B C D E F CONTENTS SAFETY INFORMATION.2 1. SERVICE PRECAUTIONS.4 1.1 NOTES ON SOLDERING.4 1.2 NOTES ON REPLACING PARTS.4 1.3 SERVICE NOTICE.4 2. SPECIFICATIONS.5 3. BASIC ITEMS FOR SERVICE .6 3.1 CHECK POINTS AFTER SERVICING .6 3.2 JIGS LIST.6 3.3 PCB LOCATIONS.7 4. BLOCK DIAGRAM .8 4.1 OVERALL WIRING DIAGRAM .8 4.2 AUDIO BLOCK DIAGRAM.10 4.3 D-MAIN BLOCK DIAGRAM.12 4.4 POWER SUPPLY BLOCK DIAGRAM.14 4.5 VIDEO BLOCK DIAGRAM.16 5. DIAGNOSIS .17 5.1 TROUBLESHOOTING.17 5.2 USB/iPod ERROR MESSAGE.29 5.3 DETECTION CIRCUIT .30 5.4 IC INFORMATION .32 6. SERVICE MODE.38 6.1 SERVICE MODE .38 7. DISASSEMBLY .42 8. EACH SETTING AND ADJUSTMENT.50 8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED.50 8.2 UPDATING OF THE FIRMWARE.51 8.3 IDLE CURRENT ADJUSTMENT.57 9. EXPLODED VIEWS AND PARTS LIST.58 9.1 PACKING SECTION.58 9.2 EXTERIOR SECTION .60 10. SCHEMATIC DIAGRAM.64 10.1 AUDIO ASSY.64 10.2 AMP5 ASSY (1/2).66 10.3 AMP5 ASSY (2/2).68 10.4 MAIN ASSY.70 10.5 D-MAIN ASSY (1/4).72 10.6 D-MAIN ASSY (2/4).74 10.7 D-MAIN ASSY (3/4).76 10.8 D-MAIN ASSY (4/4).78 10.9 VIDEO, G-L, G-R, WG-B and WG-A ASSYS.80 10.10 BRG-A, BRG-B and BRG-C ASSYS .82 10.11 FRONT, INSEL, HP, MIC, F-USB and WG ASSYS.84 10.12 STANDBY ASSY.86 11. PCB CONNECTION DIAGRAM.88 11.1 AUDIO ASSY.88 11.2 AMP5 ASSY .90 11.3 MAIN ASSY.92 11.4 D-MAIN ASSY .96 11.5 VIDEO ASSY.100 11.6 G-L, G-R, WG-B and WG-A ASSYS.101 11.7 BRG-A, BRG-B and BRG-C ASSYS .102 11.8 FRONT, INSEL, HP, MIC, F-USB and WG ASSYS.106 11.9 STANDBY ASSY.110 12. PCB PARTS LIST.111 RadioFans.CN 收音机爱 好者资料库 4VSX-522-K 1234 A B C D E F 1234 1. SERVICE PRECAUTIONS 1.1 NOTES ON SOLDERING 1.2 NOTES ON REPLACING PARTS 1.3 SERVICE NOTICE For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering. Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron. Do NOT use a soldering iron whose tip temperature cannot be controlled. Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden). The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia. The part listed below is difficult to replace as a discrete component part. When the part listed in the table is defective, replace whole Assy. Assy Name D-MAIN Assy HDMI ReceiverIC with heat-padIC2000 Parts that is Difficult to Replace Ref No.FunctionPart No.Remarks D-MAIN 3.3 V Power Supply ICIC with heat-padIC2007 D-MAIN 5 V Power Supply ICIC with heat-padIC2008 DSP 1.2 V Power Supply ICIC with heat-padIC2013 DSP 1.8 V Power Supply ICIC with heat-padIC2015 DSP ICIC with heat-padIC2016 USB 5 V SW ICIC with heat-padIC2024 Discharging For more detail, please refer to 7. DISASSEMBLY - 1. Discharging. Notes on Ground Points Connection For more detail, please refer to 7. DISASSEMBLY - 2. Notes on Ground Points Connection. RadioFans.CN 收音机爱 好者资料库 5VSX-522-K 5678 5678 A B C D E F 2. SPECIFICATIONS Amplifier section Continuous average power output of 80 watts* per channel, min., at 8 ohms, from 20 Hz to 20 000 Hz with no more than 0.08 %* total harmonic distortion. Front (stereo). 80 W + 80 W Power output (1 kHz, 6 , 1 %).140 W per channel Guaranteed speaker impedance. 6 to 16 * Measured pursuant to the Federal Trade Commissions Trade Regulation rule on Power Output Claims for Amplifiers * Measured by Audio Spectrum Analyzer Audio Section Input (Sensitivity/Impedance) LINE.